It's been 13 days & my 2 Red-tailed Boa's are still not eating, help!?

So I got 2 RTB's on May 17th of 2011, they were 18'' long, one being a male and one female. The breeder said they will need to eat on that day in which i picked them up but they did not. I had them both housed together in a 55gal tank but from what I hear it may cause stress and cause them not to eat. However, I customized the tank a little bit and put a divider in the middle to separate the 2 for now until I build their enclosure. After the renovation I left the snakes alone for 2days without handling them, and this morning tried to feed the female because she was slithering around so I gave it a shot but it was a no go. Tomorrow will be 14days they have not ate. Im just getting worried, I mean these are 2 beautiful snakes and I really want the best for them. They still look healthy,about 21'' long, no bubbles or signs of breathing issues. I do see them drinking water from time to time also. Can anyone help me out or has anyone dealt with this before? I know force feeding is the last result and that's not a thought in my head yet but I mean if I have to result to that then I guess I must. I look forward to your answers, thank you.